--- title: "Connect Langfuse to AddressZen - APIANT.ai" description: "When \"New Trace\" fires in Langfuse, your agent runs \"Validate email address\" in AddressZen." canonical: "https://apiant.ai/connect/langfuse-to-addresszen" --- # Connect Langfuse to AddressZen When **New Trace** fires in [Langfuse](https://apiant.ai/connections/langfuse), your agent runs **Validate email address** in [AddressZen](https://apiant.ai/connections/addresszen). Describe the whole flow and it is built, tested on every scenario and kept running. Langfuse **1** trigger Langfuse **14** actions AddressZen **9** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want Langfuse and AddressZen to do together? Give your AI client this address. `https://mcp.apiant.ai` One connection does both: ask your client to act in an app once, or have it build an automation that keeps running. Any client that takes a remote MCP server. Nothing to install. Create your free account, then sign in once in your browser. ### Set it up in your client ### Claude Code Run this in the directory you want to work in. `claude mcp add --transport http -s project apiant-ai https://mcp.apiant.ai` Start Claude Code there, approve the server, and sign in in the browser page it opens. [Claude Code guide (opens in a new tab)](https://apiant.ai/docs/mcp/claude-code) ### Claude, web and desktop Open Customize, then Connectors, then Add custom connector, and paste the address. On Team and Enterprise an owner adds it first. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Cursor Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Zed Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Codex and the ChatGPT desktop app Open Settings, then MCP servers, then Add server, and choose Streamable HTTP. From the terminal, Codex takes the address with its own add command and then signs you in. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Any other MCP client Paste the address where the client asks for a remote MCP server URL, and name the server apiant-ai where it lets you. APIANT's skills reach the client over the same connection. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) Example flows ## What Langfuse can start in AddressZen - When **New Trace** in Langfuse then **Validate email address** in AddressZen - When **New Trace** in Langfuse then **Freeform US Address Verification** in AddressZen Starting points drawn from the triggers and actions in the catalog today. Describe the flow you need, at any depth, and your agent builds it and tests every scenario before it ships. Everything your agent can do with Langfuse and AddressZen ## Triggers and actions 1 trigger · 23 actions - Trigger **New Trace** Polling trigger: fires for newly created traces (dedup by trace id / timestamp). - Action **Add Comment** Add a comment to a trace/observation/session/prompt object. - Action **Add Dataset** Create a new dataset. - Action **Add Dataset Item** Create an item (input/expected_output/metadata) in a dataset. - Action **Add Prompt** Create a new prompt version (text or chat). - Action **Add Score** Create a score attached to a trace/observation/session (numeric, categorical, or boolean). - Action **Delete Trace** Delete a trace by id. - Action **Get Project** Reads the Langfuse project that the connection's project-scoped API key belongs to. - Action **Get Prompt** Get a prompt by name (and optional version/label). - Action **Get Trace** Get a single trace by id, including nested observations/scores. - Action **List Dataset Items** List items in a dataset. - Action **List Datasets** List all datasets in the project. - Action **List Prompts** List all prompts in the project. - Action **List Scores** List scores with optional filters. - Action **List Traces** List traces with optional filters (user, session, tags, timerange). - Action **Find addresses by search term** Returns address suggestions (a display label and an id) matching a partial address, ranked by relevance. Use Get address with an id to retrieve the full address. - Action **Find places by search term** Returns up to 10 place suggestions (countries, regions, cities and other administrative areas) matching a search term, each with an id you can pass to Get place. - Action **Freeform US Address Verification** Verifies a full one-line US address against USPS CASS data and returns the standardized, corrected address with ZIP+4 and delivery details. - Action **Get address** Returns the full address for an address suggestion id from Find addresses by search term. Each successful retrieval uses one lookup from your balance. - Action **Get place** Returns the full details of a place (coordinates, language and the underlying GeoNames record) for a place ID taken from a Find places result. - Action **US Address Verification With Street Address and Zip Code** Verifies and standardizes a US street address using its ZIP code, returning the corrected address with ZIP+4 and USPS delivery details. - Action **US Address Verification With Street Address, City and State** Verifies a US street address given its street line, city and state, and returns the standardized, USPS CASS-corrected address with ZIP+4 and match scores. - Action **Validate email address** Checks whether an email address is deliverable and reports whether it is disposable, free, a role address or on a catch-all domain. - Action **Validate phone number** Validates a phone number and returns whether it is valid, its country, national and international formats, and its original (and optionally current) carrier. ## Each app on its own - [ **Langfuse** Langfuse is an open-source LLM engineering platform (GitHub) that helps teams collaboratively debug...](https://apiant.ai/connections/langfuse) - [ **AddressZen** AddressZen is a CASS certified US and international address verification service](https://apiant.ai/connections/addresszen) Reviews ## What our customers say ## More from Langfuse - [ **Langfuse to 5DollarFootball** Football fixtures, results, standings and historical odds with corner and card lines](https://apiant.ai/connect/langfuse-to-5dollarfootball) - [ **Langfuse to Cloudflare Trace** Cloudflare Trace is a free JSON wrapper over Cloudflare's edge trace endpoint that reports what Cloudflare...](https://apiant.ai/connect/langfuse-to-cloudflare-trace) - [ **Langfuse to PaperClean** Clean document photos for printing, remove shadows, fix lighting](https://apiant.ai/connect/langfuse-to-paperclean) - [ **Langfuse to Postman** Postman is a platform for building and testing APIs.](https://apiant.ai/connect/langfuse-to-postman) - [ **Langfuse to Rendobar** Hosted media processing over REST: transcode, caption, watermark video](https://apiant.ai/connect/langfuse-to-rendobar) - [ **Langfuse to Runpod** Cloud GPU platform for renting on-demand compute to train and deploy AI models, including serverless...](https://apiant.ai/connect/langfuse-to-runpod) ## More into AddressZen - [ **HubSpot to AddressZen** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-addresszen) - [ **Salesforce to AddressZen** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-addresszen) - [ **Slack to AddressZen** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-addresszen) - [ **Google Sheets to AddressZen** Google Sheets](https://apiant.ai/connect/google-sheets-to-addresszen) - [ **Gmail to AddressZen** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-addresszen) - [ **Google Calendar to AddressZen** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-addresszen) Questions ## Langfuse and AddressZen, answered ### ### What can start an automation from Langfuse? Any of Langfuse's 1 trigger in the catalog, including New Trace. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in AddressZen when something happens in Langfuse? Any of AddressZen's 9 actions, including Find addresses by search term, Find places by search term, Freeform US Address Verification and Get address. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from AddressZen to Langfuse? AddressZen has no triggers in the catalog today, so automations start in Langfuse. If you need the other direction, ask: your agent reads AddressZen's API documentation and adds it. ### ### Do I have to build a connector for Langfuse or AddressZen? No. Both are in the catalog with their triggers and actions. You describe the automation; your agent builds it, tests every scenario and keeps it running. ### ### Can my AI client use Langfuse and AddressZen without building an automation? Yes. With your AI client connected to APIANT, ask it to do something in either app once and it runs that action on the spot. Ask for an automation and your agent builds it, tests every scenario and keeps it running. One connection covers both. ### ### What happens when something fails? Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships. ### ### Is there a free plan? Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.